公开(公告)号：US20140142267A1

公开(公告)日：2014-05-22

申请号：US14063587

申请日：2013-10-25

Applicant: Konica Minolta, Inc.

Inventor： Kazuyoshi GOAN ,  Mikio KOUYAMA ,  Hajime TADOKORO

IPC: G03G9/087

CPC classification number: G03G9/08706

Abstract: A toner for electrostatic image development having sufficient low-temperature fixing properties, and excellent heat resistant storage stability and crush resistance is provided. In toner particles containing at least a binder resin, the binder resin contains a polymer having a structural unit represented by a general formula (1), wherein R1, R2, and R3 each independently represent a hydrogen atom, a hydroxyl group, or an alkoxy group, or two adjacent groups of R1, R2, and R3 combine to form —O(CH2)iO—, where i represents an integer of 1 or 2, provided that at least one of R1, R2, and R3 is an alkoxy group, or two adjacent groups combine to form —O(CH2)iO—; and R4 represents a hydrogen atom, a halogen atom, an alkyl group, a hydroxyl group, or an alkoxy group.

Abstract translation: 提供了具有足够的低温定影性能和优异的耐热储存稳定性和抗粉碎性的用于静电图像显影的调色剂。 在含有至少一种粘合剂树脂的调色剂颗粒中，粘合剂树脂含有具有由通式（1）表示的结构单元的聚合物，其中R 1，R 2和R 3各自独立地表示氢原子，羟基或烷氧基 基团或两个R 1，R 2和R 3的相邻基团组合形成-O（CH 2）i O-，其中i表示1或2的整数，条件是R 1，R 2和R 3中的至少一个为烷氧基 ，或两个相邻的基团结合形成-O（CH 2）i O-; R 4表示氢原子，卤素原子，烷基，羟基或烷氧基。

公开(公告)号：US20160011532A1

公开(公告)日：2016-01-14

申请号：US14796530

申请日：2015-07-10

Applicant: Konica Minolta, Inc.

Inventor： Mikio KOUYAMA ,  Hiroyuki FUKUDA ,  Shiro HIRANO ,  Asao MATSUSHIMA

IPC: G03G9/087 ,  G03G9/08

CPC classification number: G03G9/0806 ,  G03G9/08711 ,  G03G9/08764 ,  G03G9/08795 ,  G03G9/08797

Abstract: The toner according to the present invention is used for electrostatic latent image development, and has toner particles containing a binder resin, a colorant and a release agent. The binder resin is composed of a non-crystalline resin and a crystalline resin. The toner satisfies the relationship represented by specific expressions specified by the endothermic property of the crystalline resin, the endothermic property of the toner and the content ratio of the binder resin in the toner particles.

Abstract translation: 根据本发明的调色剂用于静电潜像显影，并且具有含有粘合剂树脂，着色剂和脱模剂的调色剂颗粒。 粘合剂树脂由非结晶性树脂和结晶性树脂构成。 调色剂满足由结晶性树脂的吸热特性指定的特定表达式，调色剂的吸热性和调色剂颗粒中粘合剂树脂的含量比表示的关系。

公开(公告)号：US20150234306A1

公开(公告)日：2015-08-20

申请号：US14616212

申请日：2015-02-06

Applicant: Konica Minolta, Inc.

Inventor： Mikio KOUYAMA ,  Natsuko FUJISAKI ,  Asao MATSUSHIMA ,  Ken OHMURA ,  Tatsuya NAGASE

IPC: G03G9/087 ,  G03G9/08

CPC classification number: G03G9/08764 ,  G03G9/08795 ,  G03G9/08797

Abstract: To provide a toner for electrostatic charge image development which allows obtainment of excellent low temperature fixability and a document off-set resistance sufficiently and also inhibition of an excessive increase in glossiness of a formed fixed image, and a method for manufacturing the same.The toner for electrostatic charge image development includes toner particles containing a binder resin, a colorant, and a releasing agent, in which the binder resin contains at least an amorphous resin and an urethane modified crystalline resin including a crystalline polymer segment and an urethane polymer segment bound to each other, the urethane modified crystalline resin being non-compatible with the amorphous resin, and the amount of ionic dissociating group of the urethane modified crystalline resin is 5 to 20 mgKOH/g.

Abstract translation: 为了提供静电荷图像显影用调色剂及其制造方法，能够充分获得优异的低温定影性和文档偏移电阻，并且抑制形成的固定图像的光泽度的过度增加。 用于静电荷图像显影的调色剂包括含有粘合剂树脂，着色剂和脱模剂的调色剂颗粒，其中粘合剂树脂至少含有无定形树脂和包含结晶聚合物链段和氨基甲酸酯聚合物链段的氨基甲酸酯改性结晶树脂 氨基甲酸酯改性结晶性树脂与无定形树脂不相容，氨基甲酸酯改性结晶性树脂的离子解离基团的量为5〜20mgKOH / g。

公开(公告)号：US20140228533A1

公开(公告)日：2014-08-14

申请号：US14169876

申请日：2014-01-31

Applicant: Konica Minolta, Inc.

Inventor： Kazuyoshi GOAN ,  Mikio KOUYAMA ,  Hajime TADOKORO

IPC: G03G9/087

CPC classification number: G03G9/08728 ,  G03G9/08797

Abstract: Provided is a toner for developing an electrostatic image. The toner has excellent heat-resistant storage properties and crush resistance while having sufficient low temperature fixability. The toner for developing an electrostatic image includes toner particles that contain at least a binder resin. The binder resin contains a polymer prepared by polymerizing a polymerizable monomer represented by a following general formula (1). In the general formula (1), R1 and R2 each independently represent an aliphatic hydrocarbon group having 1 to 60 carbon atoms, an aliphatic group wherein some of carbon atoms of the aliphatic hydrocarbon group are substituted with an oxygen atom, or an aromatic hydrocarbon group optionally having the aliphatic hydrocarbon group or the aliphatic group as a substituent; and R3 and R4 each independently represent a hydrogen atom or an aliphatic hydrocarbon group.

Abstract translation: 提供了用于显影静电图像的调色剂。 该调色剂具有优异的耐热存储性能和抗压碎性，同时具有足够的低温定影性。 用于显影静电图像的调色剂包括至少含有粘合剂树脂的调色剂颗粒。 粘合剂树脂包含通过聚合由以下通式（1）表示的可聚合单体制备的聚合物。 在通式（1）中，R 1和R 2各自独立地表示碳原子数1〜60的脂肪族烃基，脂肪族烃基的一部分被氧原子取代的脂族基，或芳香族烃基 任选地具有脂族烃基或脂族基团作为取代基; R 3和R 4各自独立地表示氢原子或脂肪族烃基。

公开(公告)号：US20160070185A1

公开(公告)日：2016-03-10

申请号：US14837600

申请日：2015-08-27

Applicant: Konica Minolta Inc.

Inventor： Mikio KOUYAMA ,  Hiroyuki FUKUDA ,  Shiro HIRANO ,  Asao MATSUSHIMA

IPC: G03G9/08 ,  G03G9/087

CPC classification number: G03G9/0806 ,  G03G9/08711 ,  G03G9/08755 ,  G03G9/08791 ,  G03G9/08795 ,  G03G9/08797

Abstract: A method of manufacturing an electrostatic latent image developing toner made of a binding resin made of an amorphous resin and a crystalline resin, and toner particles containing a releasing agent and a coloring agent, the method includes: adding a monomer for forming the amorphous resin, in an aqueous medium, under presence of the fine particles containing the crystalline resin, and performing polymerization to obtain coated resin fine particles that are fine particles containing the crystalline resin, the fine particles being coated with the amorphous resin; and flocculating and fusing at least fine particles containing the amorphous resin, the coated resin fine particles, and fine particles containing the coloring agent, in an aqueous medium, under presence of a flocculating agent, to obtain the toner particles, wherein a surfactant having concentration of one to five times critical micellar concentration is added to the aqueous medium in the polymerization.

Abstract translation: 一种制造由由无定形树脂和结晶树脂制成的粘合树脂制成的静电潜像显影调色剂的方法，以及含有脱模剂和着色剂的调色剂颗粒的方法，包括：添加用于形成无定形树脂的单体， 在水性介质中，在含有结晶性树脂的微粒子的存在下，进行聚合，得到作为含有结晶性树脂的微细颗粒的涂布树脂微粒，该微粒被无定形树脂涂布; 并且在水性介质中，在絮凝剂存在下，将至少包含非晶质树脂，涂覆树脂微粒和含有着色剂的细颗粒的微粒絮凝和熔融，得到调色剂颗粒，其中具有浓度 在聚合反应中加入一到五次临界胶束浓度的水性介质。